#3F352E
Closest named color: Onyx (#343A40). oklch(33.7% 0.019 57), rgb(63, 53, 46).
Aa
White text reads best on this color (11.93:1).
About this color
#3F352E is a dark close to neutral grey. In OKLCH its lightness is 34%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.033 away. White text reads best on it, at 11.93:1.
| Hue family | Neutrals |
| Lightness | dark (34%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.76:1 |
| White text | 11.93:1 |
Values
| HEX | #3F352E |
| RGB | rgb(63, 53, 46) |
| HSL | hsl(25, 16%, 21%) |
| OKLCH | oklch(33.7% 0.019 57) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #3F352E | 11.93:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #3F352E | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #3F352E text on white | 11.93:1 | AAA | Lc 97.4 | Preferred for body text |
| #3F352E text on black | 1.76:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F6F5F4
oklch(97.1% 0.002 67.8)
-
Step 100
100
#ECE9E7
oklch(93.6% 0.004 56.4)
-
Step 200
200
#DDD8D4
oklch(88.5% 0.008 61.4)
-
Step 300
300
#C8BFB8
oklch(81% 0.014 60.5)
-
Step 400
400
#AC9D93
oklch(70.6% 0.023 56)
-
Step 500
500
#978579
oklch(63% 0.028 55.8)
-
Step 600
600
#826F62
oklch(55.6% 0.031 56.4)
-
Step 700
700
#6E5D51
oklch(49.1% 0.029 57.2)
-
Step 800
800
#5A4C42
oklch(42.8% 0.025 57.5)
-
Step 900
900 (this color)
#3F352E
oklch(33.7% 0.019 57)
-
Step 950
950
#2B2521
oklch(27% 0.012 55.8)
#3F352E with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #38362E | 0.013 |
| Deuteranopia (no green cones) | #3A382E | 0.013 |
| Tritanopia (no blue cones) | #423333 | 0.014 |
| Achromatopsia (no color) | #373737 | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F352E
#3F352E
oklch(33.7% 0.019 57)
- #2E3940
#2E3940
oklch(33.7% 0.019 236.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #3F352E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.033
- Charcoal Grey #3C4142 ΔE 0.042
- Gunmetal #293241 ΔE 0.052
- Pakistan Green #283618 ΔE 0.057
- Space Cadet #2B2D42 ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.065
- Dark Olive #373E02 ΔE 0.071
- Charcoal #264653 ΔE 0.073
Use #3F352E in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.